Patents by Inventor Keiichiro Sato

Keiichiro Sato has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11195651
    Abstract: An inductance element includes a magnetic core and a coil having a portion embedded in the magnetic core. This portion includes a wound portion formed by winging a wire-shaped coil material including a wire-shaped conductive material and an insulating coating. The insulating coating includes a thin-walled portion reduced in thickness. A biting ratio R is defined by formula: R=ds/B, which is from 0.4 to 0.85 inclusive, where B is the average thickness of inter-coil insulating coatings, and ds is an upper biting limit obtained by measuring a biting depth, approximating a frequency distribution of the results by a normal distribution, and computing, as the upper biting limit, the sum of the mean da of the normal distribution and the product of 3.99 and the standard deviation ?. The biting depth is obtained by subtracting, from the average thickness B, the thickness of the thin-walled portion.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: December 7, 2021
    Assignee: Alps Alpine Co., Ltd.
    Inventors: Akinori Kojima, Seisaku Imai, Akira Sato, Keiichiro Sato
  • Patent number: 11191499
    Abstract: A radiographic imaging apparatus includes a sensor substrate including a flexible base material, and an active area which is provided on a first surface of the base material and in which a plurality of pixels, which accumulate electrical charges generated in accordance with light converted from radiation, are formed; a conversion layer that is provided on the first surface side in the sensor substrate to convert radiation into the light; and a grid that is disposed on a second surface side opposite to the first surface of the base material and has a removal portion that has a mesh-like radiation absorbing member provided between a plurality of partitions in units of a predetermined number of pixels to remove scattered radiation according to the radiation.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: December 7, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Naoto Iwakiri, Keiichiro Sato, Haruyasu Nakatsugawa
  • Publication number: 20210233690
    Abstract: A compression molded core contains a plurality of soft magnetic material powders. A first powder and a second powder in the plurality of powders satisfy D1>D2, 0.23?(D1?D2)/D1<0.6, D1?7 ?m, and 3 ?m?DT?5.7 ?m. D1 is the median diameter, which is a particle size at which the integrated particle diameter distribution from the small particle size side is 50% in a volume-based particle size distribution measured by a laser diffraction/scattering method, of the first powder and is maximum among median diameters; D2 is the median diameter D2 of the second powder and is minimum among median diameters; and DT is determined using the weight rate R1 of the first powder and the weight rate R2 of the second powder by R1×D1+R2×D2.
    Type: Application
    Filed: April 9, 2021
    Publication date: July 29, 2021
    Inventors: Akinori KOJIMA, Ryo NAKABAYASHI, Keiichiro SATO
  • Publication number: 20210074464
    Abstract: In a coil-embedded dust core constituting an inductance element, a winding body of a coil disposed inside a coil-embedded dust core and a dust core have a relationship that the inner core volume ratio RV defined below is 3 or more and 5 or less: RV=(V1/V2)/(1?V/Vp), where V1 represents a volume of a region in the dust core located on an inner side of the winding body of the coil when the coil-embedded dust core is viewed in a first direction, which is a direction along a winding axis of the coil, V2 represents a volume of a region in the dust core located on an outer side of the winding body of the coil when the coil-embedded dust core is viewed in the first direction, V represents a volume of the dust core, and Vp represents a volume of the coil-embedded dust core.
    Type: Application
    Filed: October 27, 2020
    Publication date: March 11, 2021
    Inventors: Ryo NAKABAYASHI, Akinori KOJIMA, Akira SATO, Keiichiro SATO, Masahiro IIZUKA
  • Patent number: 10908525
    Abstract: A bearing component for rotatably receiving a rotating shaft on an end of a rotating unit includes a component body, an inner protrusion, and one or more outer protrusions. The component body has a recess into which the rotating shaft is rotatably inserted. The inner protrusion protrudes from a wall portion of the recess facing an end surface of the rotating shaft. The inner protrusion receives an axial load by the rotating shaft. The outer protrusions protrude from an outer surface of the component body opposite to the recess. The one or more outer protrusions are in contact with a holding unit. A contact portion between the outer protrusions and the holding unit is offset from a contact portion position between the inner protrusion and the end surface. The contact portion between at least one of the outer protrusions and the holding unit has a non-planar shape.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: February 2, 2021
    Assignee: FUJI XEROX CO.. LTD.
    Inventors: Kazuki Kuramoto, Keiichiro Sato, Shuhei Yamazaki, Hirofumi Hamada, Toru Morioka
  • Patent number: 10871741
    Abstract: A cleaning device that cleans a surface of an image holding unit capable of holding an image formed using an image forming material includes: a cleaning tool that is movable along an intersecting direction intersecting with a moving direction of the image holding unit and cleans the surface of the image holding unit when placed in a contact position where the cleaning tool is in contact with the surface of the image holding unit; and a guiding unit that guides the cleaning tool so that the cleaning tool moves from a non-contact position where the cleaning tool is not in contact with the image holding unit to the contact position for cleaning the surface of the image holding unit, wherein when the image holding unit is moved, the cleaning tool placed in the contact position cleans the surface of the image holding unit.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: December 22, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Keiichiro Sato
  • Publication number: 20200319572
    Abstract: A bearing component for rotatably receiving a rotating shaft on an end of a rotating unit includes a component body, an inner protrusion, and one or more outer protrusions. The component body has a recess into which the rotating shaft is rotatably inserted. The inner protrusion protrudes from a wall portion of the recess facing an end surface of the rotating shaft. The inner protrusion receives an axial load by the rotating shaft. The outer protrusions protrude from an outer surface of the component body opposite to the recess. The one or more outer protrusions are in contact with a holding unit. A contact portion between the outer protrusions and the holding unit is offset from a contact portion position between the inner protrusion and the end surface. The contact portion between at least one of the outer protrusions and the holding unit has a non-planar shape.
    Type: Application
    Filed: December 20, 2019
    Publication date: October 8, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kazuki KURAMOTO, Keiichiro Sato, Shuhei Yamazaki, Hirofumi Hamada, Toru Morioka
  • Publication number: 20200310333
    Abstract: A cleaning device that cleans a surface of an image holding unit capable of holding an image formed using an image forming material includes: a cleaning tool that is movable along an intersecting direction intersecting with a moving direction of the image holding unit and cleans the surface of the image holding unit when placed in a contact position where the cleaning tool is in contact with the surface of the image holding unit; and a guiding unit that guides the cleaning tool so that the cleaning tool moves from a non-contact position where the cleaning tool is not in contact with the image holding unit to the contact position for cleaning the surface of the image holding unit, wherein when the image holding unit is moved, the cleaning tool placed in the contact position cleans the surface of the image holding unit.
    Type: Application
    Filed: August 30, 2019
    Publication date: October 1, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Keiichiro SATO
  • Publication number: 20190298281
    Abstract: A radiographic imaging apparatus includes a sensor substrate including a flexible base material, and an active area which is provided on a first surface of the base material and in which a plurality of pixels, which accumulate electrical charges generated in accordance with light converted from radiation, are formed; a conversion layer that is provided on the first surface side in the sensor substrate to convert radiation into the light; and a grid that is disposed on a second surface side opposite to the first surface of the base material and has a removal portion that has a mesh-like radiation absorbing member provided between a plurality of partitions in units of a predetermined number of pixels to remove scattered radiation according to the radiation.
    Type: Application
    Filed: March 15, 2019
    Publication date: October 3, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Naoto IWAKIRI, Keiichiro SATO, Haruyasu NAKATSUGAWA
  • Publication number: 20190244745
    Abstract: An inductance element includes a magnetic core and a coil having a portion embedded in the magnetic core. This portion includes a wound portion formed by winging a wire-shaped coil material including a wire-shaped conductive material and an insulating coating. The insulating coating includes a thin-walled portion reduced in thickness. A biting ratio R is defined by formula: R=ds/B, which is from 0.4 to 0.85 inclusive, where B is the average thickness of inter-coil insulating coatings, and ds is an upper biting limit obtained by measuring a biting depth, approximating a frequency distribution of the results by a normal distribution, and computing, as the upper biting limit, the sum of the mean da of the normal distribution and the product of 3.99 and the standard deviation ?. The biting depth is obtained by subtracting, from the average thickness B, the thickness of the thin-walled portion.
    Type: Application
    Filed: April 9, 2019
    Publication date: August 8, 2019
    Inventors: Akinori KOJIMA, Seisaku IMAI, Akira SATO, Keiichiro SATO
  • Patent number: 10283266
    Abstract: A powder core includes: a powder of a crystalline magnetic material; and a powder of an amorphous magnetic material, in which a median diameter D50A of the powder of the amorphous magnetic material is 15 ?m or less, and satisfies the expression: 1?D50A/D50C?3.5 with respect to a median diameter D50C of the powder of the crystalline magnetic material.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: May 7, 2019
    Assignee: Alps Alpine Co., Ltd.
    Inventors: Ryo Nakabayashi, Akinori Kojima, Seiichi Abiko, Keiichiro Sato, Akira Sato, Takao Mizushima
  • Patent number: 10175601
    Abstract: A cleaning device includes a cleaning member, a first bearing member, a second bearing member, and a moving mechanism. The cleaning member includes a shaft portion and an elastic layer disposed around the shaft portion. The elastic layer is brought into contact with a rotating charging body. The cleaning member cleans the charging body while rotating. The first bearing member supports a first end portion of the shaft portion while rendering the shaft portion rotatable. The second bearing member supports a second end portion of the shaft portion while rendering the shaft portion rotatable. The moving mechanism is supported by the first bearing member and the second bearing member. The moving mechanism periodically moves the shaft portion in an axial direction of the shaft portion together with a rotation of the cleaning member.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: January 8, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Shuhei Yamazaki, Keiichiro Sato, Yasuhiro Funayama
  • Publication number: 20180275554
    Abstract: A cleaning device includes a cleaning member, a first bearing member, a second bearing member, and a moving mechanism. The cleaning member includes a shaft portion and an elastic layer disposed around the shaft portion. The elastic layer is brought into contact with a rotating charging body. The cleaning member cleans the charging body while rotating. The first bearing member supports a first end portion of the shaft portion while rendering the shaft portion rotatable. The second bearing member supports a second end portion of the shaft portion while rendering the shaft portion rotatable. The moving mechanism is supported by the first bearing member and the second bearing member. The moving mechanism periodically moves the shaft portion in an axial direction of the shaft portion together with a rotation of the cleaning member.
    Type: Application
    Filed: October 16, 2017
    Publication date: September 27, 2018
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Shuhei YAMAZAKI, Keiichiro SATO, Yasuhiro FUNAYAMA
  • Publication number: 20170309387
    Abstract: A powder core includes: a powder of a crystalline magnetic material; and a powder of an amorphous magnetic material, in which a median diameter D50A of the powder of the amorphous magnetic material is 15 ?m or less, and satisfies the expression: 1?D50A/D50C?3.5 with respect to a median diameter D50C of the powder of the crystalline magnetic material.
    Type: Application
    Filed: March 29, 2017
    Publication date: October 26, 2017
    Inventors: Ryo NAKABAYASHI, Akinori KOJIMA, Seiichi ABIKO, Keiichiro SATO, Akira SATO, Takao MIZUSHIMA
  • Patent number: 9784853
    Abstract: A radiation detector and a radiological image radiographing apparatus capable of improving the quality of an obtained radiological image without causing an additional cost are provided. A first scintillator configured to include columnar crystals generating first light corresponding to a radiation emitted through a TFT substrate is laminated on the other surface of the TFT substrate that has a first photoelectric conversion element, which has one surface from which a radiation is emitted and the other surface from which at least one of the first light and the second light is emitted and which generates electric charges corresponding to the light, and a first switching element. A second scintillator which generates second light corresponding to a radiation emitted through the first scintillator and has different energy characteristics of absorbed radiations from the first scintillator is laminated on a surface of the first scintillator not facing the TFT substrate.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: October 10, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Naoyuki Nishino, Naoto Iwakiri, Haruyasu Nakatsugawa, Keiichiro Sato, Yasunori Ohta
  • Publication number: 20160025868
    Abstract: A radiation detector and a radiological image radiographing apparatus capable of improving the quality of an obtained radiological image without causing an additional cost are provided. A first scintillator configured to include columnar crystals generating first light corresponding to a radiation emitted through a TFT substrate is laminated on the other surface of the TFT substrate that has a first photoelectric conversion element, which has one surface from which a radiation is emitted and the other surface from which at least one of the first light and the second light is emitted and which generates electric charges corresponding to the light, and a first switching element. A second scintillator which generates second light corresponding to a radiation emitted through the first scintillator and has different energy characteristics of absorbed radiations from the first scintillator is laminated on a surface of the first scintillator not facing the TFT substrate.
    Type: Application
    Filed: October 5, 2015
    Publication date: January 28, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Naoyuki NISHINO, Naoto IWAKIRI, Haruyasu NAKATSUGAWA, Keiichiro SATO, Yasunori OHTA
  • Patent number: 9182504
    Abstract: A radiation detector and a radiological image radiographing apparatus capable of improving the quality of an obtained radiological image without causing an additional cost are provided. A first scintillator configured to include columnar crystals generating first light corresponding to a radiation emitted through a TFT substrate is laminated on the other surface of the TFT substrate that has a first photoelectric conversion element, which has one surface from which a radiation is emitted and the other surface from which at least one of the first light and the second light is emitted and which generates electric charges corresponding to the light, and a first switching element. A second scintillator which generates second light corresponding to a radiation emitted through the first scintillator and has different energy characteristics of absorbed radiations from the first scintillator is laminated on a surface of the first scintillator not facing the TFT substrate.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: November 10, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Naoyuki Nishino, Naoto Iwakiri, Haruyasu Nakatsugawa, Keiichiro Sato, Yasunori Ohta
  • Patent number: 9119584
    Abstract: A radiation image capture device is provided with a radiation detection panel including optoelectronic conversion elements, a signal processing board that performs signal processing of the signals provided by the radiation detection panel, a flexible printed circuit, and a casing. One end of the flexible printed circuit is connected to the radiation detection panel and the other end is connected to the signal processing board. The flexible printed circuit includes a base film fowled of an insulating resin film, wiring disposed over the base film, a coating layer formed of an insulating resin disposed over the wiring, and a shield layer provided between the base film and the wiring and/or between the wiring and the coating layer. An insulator is interposed between the shield layer and the wiring, and the shield layer is connected to a fixed potential.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: September 1, 2015
    Assignee: FUJIFILM CORPORATION
    Inventor: Keiichiro Sato
  • Patent number: 8952335
    Abstract: Bias lines are provided for respective columns of pixels, and of a plurality of bias lines, bias lines provided at an interval of 10 mm are connected to a bias power source through a current detector. The remaining bias lines are connected directly to the bias power source without passing through the current detector. In each pixel, if electric charge is generated by a radiation detection element in accordance with the dose of irradiated radiation, a current flows in the bias line in accordance with the generated electric charge. The current detector detects the current flowing in the bias line, and a control unit detects, as the timing of starting irradiation of a radiation, when the detected current (current value) is equal to or greater than a threshold value, and starts radiographing of a radiological image.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: February 10, 2015
    Assignee: Fujifilm Corporation
    Inventor: Keiichiro Sato
  • Patent number: 8918815
    Abstract: The television (1) includes: an infrared radiation receiver (119) which receives from a user an instruction to select a program cell; and a CPU (118) which generates a user interface screen of an electronic program table to be displayed on an LCD (110). The CPU (118) generates the user interface screen of the electronic program table such that a time zone item column located in a left direction of a selected program cell and a time zone item column located in a right direction of the selected program cell are indicated with deep blue, and other time zone item columns are indicated with light blue.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: December 23, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Aya Minehara, Ai Terashima, Yoshinori Oonishi, Kinya Fujimoto, Kazunori Yoshizawa, Yoshinori Ohmura, Yukimi Kawaguchi, Yuhji Ohi, Keiichiro Sato, Yumiko Saimen, Akihiko Ito